Alternate approximation of concave cost functions for process design and supply chain optimization problems

被引：12

作者：

Cafaro, Diego C. ^{[1
]}

Grossmann, Ignacio E. ^{[2
]}

机构：

[1] INTEC UNL CONICET, RA-3000 Santa Fe, Argentina

[2] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA

来源：

COMPUTERS & CHEMICAL ENGINEERING | 2014年 / 60卷

基金：

美国安德鲁·梅隆基金会;

关键词：

Concave cost functions; Nonlinear optimization; Process synthesis; EXCHANGER NETWORK SYNTHESIS;

D O I：

10.1016/j.compchemeng.2013.10.001

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This short note presents an alternate approximation of concave cost functions used to reflect economies of scale in process design and supply chain optimization problems. To approximate the original concave function, we propose a logarithmic function that is exact and has bounded gradients at zero values in contrast to other approximation schemes. We illustrate the application and advantages of the proposed approximation. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：376 / 380

页数：5

共 11 条

[1] Global Superstructure Optimization for the Design of Integrated Process Water Networks [J].